SMBS (TECH GRADE)
SODIUM METABISULPHITE – E223 SMBS (TECH GRADE)
| Product Name | Sodium Metabisulphite | |
| Formula | Na2S2O5 | |
| Molecular Weight | 190.10 | |
| CAS No. | 7681-57-4 | |
| HS CODE | 2832.10 | |
| Parameter | Kayon Standard Value | Analytical Method |
| Appearance | White to Yellowish Crystalline Power | Visual |
| Odor | An odor of Sulfur Dioxide | Nasal |
| Purity(Na2S2O5) | 97.0 % min. | Titrimetric |
| SO2 | 65.3 % min. | Titrimetric |
| Na2SO4 | 3.0 % max. | Turbidimetric |
| Iron(Fe) | 50.0 ppm (mg/kg) max. | Colorimetric |
| Lead(Pb) | 20.0 ppm (mg/kg) max. | Polarographic/AAS |
| Arsenic(As) | 1.0 ppm (mg/kg) max. | Polarographic/AAS |
| Insolubility | 0.05 % max. | Gravimetric |
| pH (5% solution) | 4.0-4.8 | pH Meter |
| Chloride(Cl) | ||
| Cadmium(Cd) | ||
| Selenium(Se) | ||
| Mercury(Hg) | ||
(1) In 25kg Polyethylene bags, resistant to moisture, air and physical damage |
(2) In 25kg, 50kg, 500kg, 1000kg – 1350kg Polypropylene bags with Polyethylene liners |
(3) 25kg Polyethylene bags, 24mt/20’GP max. with pallets, 27mt/20’GP max. without pallets |
(4) 25kg PP bags with PE liners, 25mt/20’GP max. with pallets, 27mt/20’GP max. without pallets |
(5) 1000kg – 1350kg big bags, 20-27mt/20’GP, depends on package size and with pallets or without pallets |
(1) As a preservative and antioxidant in food industries |
(2) Mainly used in Gold, Cobalt, Copper, Zinc mining industries |
(3) Color removing in paint and leather industries |
(4) As a bleaching agent in textile industry |
(5) Antiseptic in production of cellulose esters |
(6) Main raw material in production of sodium hydrosulfite, aromatic alcohols and aldehydes |
(7) Disinfectant in cosmetic industry |
(8) Various applications in paper, fiber, rubber and adhesive industries |
It should be stored in a dry and closed area avoiding air. Due to the decomposition, it loses its activity gradually. |
According to Sodium Metabisulphite natural property, the phenomenon of Pseudo Caking is normal. |